Horology: time measuring systems or devices – Combined with disparate device
Reexamination Certificate
2004-10-18
2008-08-12
Miska, Vit W (Department: 2833)
Horology: time measuring systems or devices
Combined with disparate device
C368S046000, C368S047000, C368S156000, C331S046000, C702S075000, C702S176000, C702S190000
Reexamination Certificate
active
07411867
ABSTRACT:
Apparatus and method for producing a composite clock signal with optimized stability characteristics from individual clocks which have different stabilities or variances. The composite clock signal includes weighted individual clock signals. In a first (PPN) case, an optimum composite clock is a scale-factor-weighted linear combination of clock signals. In another (non-PPN) case, the optimum stable composite clock is the output of a linear filter of the input clocks signals. Both the phases and frequencies of the individual clocks over time are estimated.
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Duane Morris LLC
Lockheed Martin Corporation
Miska Vit W
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